公开(公告)号：US20140318759A1

公开(公告)日：2014-10-30

申请号：US14150183

申请日：2014-01-08

Applicant: ROLLS-ROYCE PLC

Inventor： Sean Patrick ELLIS ,  Rory Douglas STIEGER

IPC: B64D33/02

CPC classification number: B64D33/02 ,  F02C7/185 ,  F02K3/115 ,  F05D2260/213 ,  F05D2270/112 ,  Y02T50/676

Abstract: A method of controlling an aircraft gas turbine engine cooling system. The cooling system includes a heat exchanger having a first fluid path through which fan air flows, and a second fluid path through which relatively hot compressor air flows. The cooling system includes a valve configurable between an open position corresponding to a first operating mode, where fan air flows through the first path cooling the compressor air in the second path to a lower temperature, and a closed position corresponding to a second operating mode, where fan air may flow through the first path at a reduced rate, thus the compressor air in the second path could be cooled to a lesser extent. The valve is operated in first mode when the aircraft is in a descent mode, or when turbine entry temperature is above a predetermined amount. Otherwise, the valve is operated in second mode.

Abstract translation: 一种控制飞机燃气涡轮发动机冷却系统的方法。 冷却系统包括具有风扇空气流过的第一流体路径的热交换器和相对热的压缩机空气通过的第二流体路径。 冷却系统包括可配置在对应于第一操作模式的打开位置之间的阀，其中风扇空气流过第一路径，将第二路径中的压缩机空气冷却到较低温度，以及对应于第二操作模式的关闭位置， 其中风扇空气可以以降低的速率流过第一路径，因此第二路径中的压缩机空气可被冷却到较小程度。 当飞行器处于下降模式时，或者当涡轮进入温度高于预定量时，阀在第一模式下操作。 否则，阀在第二模式下运行。

公开(公告)号：US20140125121A1

公开(公告)日：2014-05-08

申请号：US14036721

申请日：2013-09-25

Applicant: ROLLS-ROYCE PLC

Inventor： Huw Llewelyn EDWARDS ,  Parag VYAS ,  Malcolm Laurence HILLEL ,  Alasdair GARDNER ,  Sean Patrick ELLIS ,  Nicholas HOWARTH

IPC: B60R16/03

CPC classification number: B60R16/03 ,  B64D2221/00 ,  H02J4/00 ,  H02J7/1446 ,  Y02T50/54

Abstract: A method of operating an electrical power generation system on an aircraft. The method includes assessing a required electrical power of the aircraft, assessing whether a first and a second electrical power source are able to provide the required electrical power in combination, assessing a predetermined condition, determining an operating mode of the first and second electrical power sources to match the predetermined condition, and operating the first and second electrical power sources according to the determined operating mode.

Abstract translation: 一种在飞机上操作发电系统的方法。 该方法包括评估飞行器的所需电力，评估第一和第二电源是否能够组合提供所需的电力，评估预定条件，确定第一和第二电源的操作模式 以匹配预定条件，并且根据所确定的操作模式操作第一和第二电源。

公开(公告)号：US20150159499A1

公开(公告)日：2015-06-11

申请号：US14537382

申请日：2014-11-10

Applicant: ROLLS-ROYCE PLC

Inventor： Marko BACIC ,  Glenn Alexander KNIGHT ,  Parag VYAS ,  Sean Patrick ELLIS

IPC: F01D11/14 ,  F02C9/00

CPC classification number: F01D11/14 ,  F01D11/20 ,  F02C9/00 ,  F02C9/28 ,  F05D2270/02 ,  F05D2270/04 ,  F05D2270/051 ,  F05D2270/20 ,  F05D2270/309 ,  F05D2270/44

Abstract: A thrust demand signal is provided to a processor of a gas turbine engine and is modified, according to growth time constants of a rotor and/or a casing of the engine, in order to control the rotational speed or the rate of change of rotational speed of the engine so as to prevent contact between the rotor and the casing.

Abstract translation: 推力需求信号被提供给燃气涡轮发动机的处理器，并且根据发动机的转子和/或壳体的生长时间常数被修改，以便控制转速或转速变化率 以防止转子和壳体之间的接触。